Cornerback Josh Robinson

Otto Greule Jr/Getty ImagesJosh Robinson is being asked to play the slot, something the cornerback hasn't ever done.

Think back to your first day at a new job. Were you nervous?

I bet you were, at least slightly.

Josh Robinson enters Vikings' training camp with a new job. Barring a substantial letdown, Rookie Xavier Rhodes will start across from Chris Cook as Minnesota's two cornerbacks.

Should that hold, Robinson's best chance to see as much playing time as possible would be to play slot. Unfortunately for the Vikings, that's a position he told the Star Tribune that he has never played and didn't study last season.

Robinson is likely to go through ups and downs as he acclimates himself with his new role. That's to be expected, but he must also show signs of growth in the process. He can't make the same mistakes repeatedly without punishment or reduced playing time.

It's on Robinson to show the coaches that he can handle his new job or else they'll find someone who can.

Linebacker Erin Henderson

Notice the position designation of Erin Henderson atop this slide? Linebacker. Not outside or middle linebacker. Just linebacker.

That's because we don't really know where Henderson will play this season.

Most expect him to move back outside, but as Fox Sports North reports, nothing has been determined yet.

Henderson was adamant that he would be Minnesota's middle linebacker before the Vikings signed former Packers linebacker Desmond Bishop. Back on June 18, Henderson told 1500 ESPN, "I'm playing the Mike."

Henderson also said that he hadn't played anywhere other than middle linebacker and he hadn't been asked to play elsewhere.

To the outside observer, it makes sense (on paper) to move Bishop to middle linebacker at his natural spot and have Henderson play outside linebacker, where he's played his entire career.

Training camp will determine Henderson's fate for 2013 and possibly the rest of his Vikings' career.

Safety Mistral Raymond

One year ago, Mistral Raymond was expected to be the leader of the Vikings' safeties, with Harrison Smith and Jamarca Sanford expected to compete for the spot next to him

Most had projected Sanford to start and eventually concede to Smith.

Fast forward to now, where Smith is the leader of the safeties and Raymond is on the verge of becoming a backup.

Smith and Sanford are penciled in as the starters entering camp, but Raymond should have a shot to unseat Sanford. Smith, the 29th overall pick in 2012, is an all-around play-making safety who has solidified as a starter. That's not the case with Sanford.

Smith has been in and out of Minnesota's starting defensive backfield while being a standout on special teams.

Sanford is known as a hard hitter who excels in helping the run defense, but not in coverage. Raymond is known for his cover skills, but is prone to mental mistakes.

If Raymond doesn't step up in camp, or luck out and have an injury create an opportunity for him, the new status quo in the secondary could have him as a backup.